The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 1983
Filed:
Jul. 06, 1981
Applicant:
Inventors:
Michio Senuma, Tokyo, JP;
Jun Shibuya, Chichibu, JP;
Assignees:
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Denshi Kabushiki Kaisha, Saitama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ; B21J / ;
U.S. Cl.
CPC ...
29417 ; 72405 ;
Abstract
A process for manufacturing blades of shutter screens wherein the blades are first formed by punching a metal plated thin plastic sheet material by a first press operation carried out thereon with end parts left connected with other portions of the plastic material. After being coated with a coating material and dried under this condition, the connecting end parts of the blades are cut off the material by a second press operation.